Calogaya xanthoriella is a species of corticolous (bark-dwelling), crustose lichen in the family Teloschistaceae.
The type specimen was collected by the author from Tuoli (Xinjiang) at an altitude of 1,450 m (4,760 ft), where it was found growing on the twigs of Berberis heteropoda.
The species epithet xanthoriella refers to the thallus shape, which is similar to a tiny Xanthoria.
Its apothecia are lecanorine or zeorine in form, with flat to concave orange discs covered with yellow pruina.
It has been found growing on the bark of Berberis, Lonicera, and Malus sieversii, as well as on weathered wood.